Dantherm CDF 40, Service Manual

Page: 22 / 32

22
Maintenance and care: Trouble shooting
Trouble shooting
The CDF can display a number of Information and Error Messages to help finding a fault.
Every single message and associated problems are explained in the following sections.
Display Description
Abrh
The relative humidity is out of range.
•
The display will automatically return to standard view when the relative
humidity is within range again.
ABt
The ambient temperature is out of range.
•
The display will automatically return to standard view when the temperature
is within range again.
LOSS
The connection to the Remote Panel is lost.
•
When the connection is reestablished the error message can be cleared by
pressing OK.
SEr
It is time for service inspection.
•
When a new service interval is set, the display will return to standard view.
PaIr
The unit tries to connect to a remote control.
•
The display will automatically return to standard view after some seconds.
Display Description
SEnS
This message indicates a sensor fault and will cause the unit to stop.
Press either Up or Down to determine which sensor is faulty. The
faulty sensor can be:
Condensor sensor (displayed COnd)
Evaporator sensor (displayed EVAP)
Humidity sensor (displayed rh°t)
If no button is pressed for 10 seconds it will return to SEnS.
LP
If the Code LP (Low Pressure detection) is shown, the fault must be found and
rectified. (See also “Fault finding” on page 23)
HP
If the Code HP (High Pressure detection) is shown, the fault must be found and
rectified. (See also “Fault finding” on page 23)
The errors described above automatically lock the unit.
Press OK and access the unlock sequence in order to dismiss the error.
Display messages
Information
messages
Error messages
COnd
EUAP
o
rh t
OK